WO2018127800A1 - Dérivés d'acide pyridin-3-yle acétique utilisés en tant qu'inhibiteurs de la réplication du virus de l'immunodéficience humaine - Google Patents

Dérivés d'acide pyridin-3-yle acétique utilisés en tant qu'inhibiteurs de la réplication du virus de l'immunodéficience humaine Download PDF

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Publication number
WO2018127800A1
WO2018127800A1 PCT/IB2018/050021 IB2018050021W WO2018127800A1 WO 2018127800 A1 WO2018127800 A1 WO 2018127800A1 IB 2018050021 W IB2018050021 W IB 2018050021W WO 2018127800 A1 WO2018127800 A1 WO 2018127800A1
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Prior art keywords
mmol
ioalkyl
dimethylpiperidin
butoxy
tert
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PCT/IB2018/050021
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English (en)
Inventor
Makonen Belema
Michael S. Bowsher
Jeffrey A DESKUS
Kyle J. Eastman
Eric P Gillis
David B Frennesson
Christiana Iwuagwu
John F. Kadow
B. Narasimhulu Naidu
Kyle E. Parcella
Kevin M PEESE
Mark G Saulnier
Prasanna SIVAPRAKASAM
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VIIV Healthcare UK (No.5) Limited
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Priority to US16/465,199 priority Critical patent/US20200055839A1/en
Priority to JP2019536131A priority patent/JP2020503348A/ja
Priority to EP18700949.3A priority patent/EP3565809A1/fr
Publication of WO2018127800A1 publication Critical patent/WO2018127800A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12—Antivirals
    • A61P31/14—Antivirals for RNA viruses
    • A61P31/18—Antivirals for RNA viruses for HIV
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/14—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/04—Ortho-condensed systems
    • C07D491/044—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring
    • C07D491/048—Ortho-condensed systems with only one oxygen atom as ring hetero atom in the oxygen-containing ring the oxygen-containing ring being five-membered
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca

Definitions

  • the invention relates to compounds, compositions, and methods for the treatment of human immunodeficiency virus (HIV) infection. More particularly, the invention provides novel inhibitors of HIV, pharmaceutical compositions containing such HIV.
  • the invention also relates to methods for making the compounds hereinafter described.
  • HIV Human immunodeficiency virus
  • AIDS acquired immune deficiency syndrome
  • NRTIs nucleotide reverse transcriptase inhibitors
  • NRTIs protease inhibitors
  • IIs integrase inhibitors
  • entry inhibitors one, maraviroc, targets the host CCR5 protein, while the other, enfuvirtide, is a peptide that targets the gp41 region of the viral gpl60 protein.
  • a pharmacokinetic enhancer with no antiviral activity i.e., cobicistat, available from Gilead Sciences, Inc. under the tradename TYBOSTTM (cobicistat) tablets, has recently been approved for use in combinations with certain antiretroviral agents (ARVs) that may benefit from boosting.
  • ARVs antiretroviral agents
  • the present invention discloses compounds of Formula I,
  • R 1 is hydrogen, halo, cyano, Ci-ioalkyl, Ci-iohaloalkyl, -Ci-ioalkyl-OH, HO-Ci-ioalkyl-O-, Ar 1 , -N(R 5 )(R 6 ), -C(0)N(R 7 )(R 8 ), or (R 9 )(R 10 )NCi-ioalkyl-;
  • R 1 and R 4 are not both alkyl
  • R 2 is benzodioxolyl, naphthalenyl, phenyl, pyrazinyl, pyridazinyl, pyridinyl, pyrimidinyl, quinolinyl, isoquinolinyl, tetrazinyl, or triazinyl, and is optionally substituted with 1-4 substituents independently selected from cyano, carbamoyl, carboxyl, halo, hydroxy, Ci- loalkyl, Ci-iohaloalkyl, -N(R 5 )(R 7 ), Ci-ioalkyl-O-, Ar 4 , Ar 4 -Ci-ioalkyl-0-,
  • R 3 is Ci-ioalkyl
  • R 4 is hydrogen, cyano, halo, Ci-iohaloalkyl, Ci-ioalkyl, Ci-ioalkyl-O-, Ci-ioalkenyl, NH2, hydroxy, -Ci-ioalkyl-OH, carbamoyl, azetidinyl, pyrrolidinyl, piperidinyl, mo ⁇ holinyl, or piperazinyl; provided R 1 and R 4 are not both alkyl;
  • R 5 is hydrogen, or Ci-ioalkyl
  • R 6 is hydrogen, Ci-ioalkyl, Ci-ioalkyl-O-Ci-ioalkyl-, Ci-ioalkyl-O-C(O)-, C3-9cycloalkyl, (C3-9cycloalkyl)Ci-ioalkyl-, l-(Ci-ioalkyl)piperidinyl-, tetrahydropyranyl,
  • R 7 is hydrogen, or Ci-ioalkyl
  • R 8 is hydrogen, Ci-ioalkyl, C3-9cycloalkyl, (Ci-ioalkyl)C3-9cycloalkyl-, -SC (Ci-ioalkyl), or
  • R 9 is hydrogen, or Ci-ioalkyl
  • R 10 is hydrogen, Ci-ioalkyl, (tetrahydropyranyl)Ci-ioalkyl-, or Ci-ioalkyl-O-C(O)-;
  • N(R 7 )(R 8 ) taken together form an azetidinyl, pyrrolidinyl, piperidinyl, 1,1- dioxidothiomorpholinyl, or mo holinyl ring; or N(R 9 )(R 10 ) taken together form an azetidinyl, azocanyl, pyrrolidinyl, piperidinyl, or azaspirononanyl ring, and is optionally substituted with 1-3 Ci-ioalkyl substitutents;
  • Ar 1 is imidazolyl, pyrazolyl, pyridinyl, pyrimidinyl, pyrrolyl, or
  • dihydrocyclopentapyrazolyl and is optionally substituted with 1-3 substitutents independently selected from amino, Ci-ioalkyl, or C3-9cycloalkyl;
  • Ar 2 is imidazolyl, pyrazolyl, or pyridinyl, and is optionally substituted with 1-3 substitutents independently selected from Ci-ioalkyl and halo substitutents;
  • Ar 3 is phenyl, pyridinyl, pyrazolyl, pyridazinyl, or pyrimidinyl, and is optionally substituted with 1-3 substituents independently selected from Ci-ioalkyl, halo, carboxy, and cyano; and
  • Ar 4 is phenyl, benzofuropyrimidinyl, or pyridofuropyrimidinyl and is optionally substituted with 1-3 substituents independently selected from cyano, halo, Ci-ioalkyl, and Ci-ioalkyl-O;
  • haloalkyl includes all halogenated isomers from monohalo to perhalo.
  • the invention also provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof for use in therapy.
  • the invention also provides a compound of Formula (I) or a pharmaceutically acceptable salt thereof for use in the treatment of HIV infection
  • the invention also provides the use of a compound of Formula (I) or a pharmaceutically acceptable salt thereof in the manufacture of a medicament for the treatment of HIV infection.
  • the invention also provides a pharmaceutical composition comprising a compound or salt of the invention.
  • the invention provides a method of treating HIV infection comprising administering a compound or salt of the invention to a patient.
  • the invention provides a method for inhibiting HIV integrase.
  • R 1 is hydrogen, halo, cyano, Ci-ioalkyl, Ci-iohaloalkyl, -Ci-ioalkyl-OH, Ar 1 , -N(R 5 )(R 6 ), or (R 9 )(R 10 )NCi-ioalkyl-; provided R 1 and R 4 are not both alkyl; and wherein R 5 , R 6 , R 9 , and R 10 are as defined above. More preferably, R 1 is hydrogen or (R 9 )(R 10 )NCi-ioalkyl-; provided R 1 and R 4 are not both alkyl; and wherein R 9 and R 10 are as defined above. Most preferably R 1 is hydrogen.
  • R 2 is phenyl, pyrazinyl, pyridazinyl, pyridinyl, pyrimidinyl, quinolinyl, or isoquinolinyl, and is optionally substituted with 1-4 substituents independently selected from cyano, carbamoyl, carboxyl, halo, hydroxy, Ci-ioalkyl, Ci- lohaloalkyl, -N(R 5 )(R 7 ), Ci-ioalkyl-O-, Ar 4 , (R 5 )(Ar 4 -Ci-ioalkyl)N-, are defined as above.
  • R 2 is phenyl, pyrazinyl, pyridazinyl, pyridinyl, or pyrimidinyl, and is optionally substituted with 1-4 substituents independently selected from cyano, carbamoyl, carboxyl, halo, Ci-ioalkyl, Ci-iohaloalkyl, -N(Ci-ioalkyl)2, Ci-ioalkyl-O-, Ar 4 ,
  • R 2 is pyridinyl substituted with one Ci-ioalkyl-O-.
  • the Ci-ioalkyl-O- is a C4alkyl.
  • the R 3 is a C4alkyl.
  • R 4 is hydrogen, cyano, halo, Ci-iohaloalkyl, Ci-ioalkyl, Ci-ioalkyl-O-, Ci-ioalkenyl, hydroxy, or -Ci-ioalkyl-OH; provided R 1 and R 4 are not both alkyl. More preferably, R 4 is Ci-ioalkyl, cyano, halo, or Ci-iohaloalkyl; provided R 1 and R 4 are not both alkyl. Most preferably R 4 is methyl and R 1 is hydrogen.
  • R 1 is hydrogen, halo, cyano, Ci-6alkyl, Ci-6haloalkyl, -Ci-6alkyl-OH, H0-Ci-6alkyl-O, Ar 1 , -N(R 5 )(R 6 ), -C(0)N(R 7 )(R 8 ), or (R 9 )(R 10 )NCi- 6 alkyl-;
  • R 1 and R 4 are not both alkyl
  • R 2 is benzodioxolyl, naphthalenyl, phenyl, pyrazinyl, pyridazinyl, pyridinyl, pyrimidinyl, quinolinyl, isoquinolinyl, tetrazinyl, or triazinyl, and is optionally substituted with 1-4 substituents indepenently selected from cyano, carbamoyl, carboxyl, halo, Ci-6alkyl, Ci- ehaloalkyl, -N(Ci- 6 alkyl) 2 , Ci-ealkyl-O-, Ar 4 , Ar 4 , Ar 4
  • R 3 is Ci-6alkyl
  • R 4 is hydrogen, cyano, halo, Ci-6haloalkyl, Ci-6alkyl, Ci-6alkyl-0-, Ci-6alkenyl, NH2, hydroxy, -Ci-6alkyl-OH, carbamoyl, azetidinyl, pyrrolidinyl, piperidinyl, mo holinyl, or piperazinyl; provided R 1 and R 4 are not both alkyl;
  • R 5 is hydrogen, or Ci-6alkyl
  • R 6 is hydrogen, Ci-6alkyl, Ci-6alkyl-0-Ci-6alkyl-, Ci-6alkyl-0-C(0)-, C3-6Cycloalkyl, (C3- 6Cycloalkyl)Ci-6alkyl-, 1 -(Ci-6alkyl)piperidinyl-, tetrahydropyranyl,
  • R 7 is hydrogen, or Ci-6alkyl
  • R 8 is hydrogen, Ci-6alkyl, C3-6cycloalkyl, (Ci-6alkyl)C3-6cycloalkyl-, -S02(Ci-6alkyl), or -
  • R 9 is hydrogen, or Ci-6alkyl
  • R 10 is hydrogen, Ci-6alkyl, (tetrahydropyranyl)Ci-6alkyl-, or Ci-6alkyl-0-C(0)-;
  • Ar 1 is imidazolyl, pyrazolyl, pyridinyl, pyrimidinyl, pyrrolyl, or
  • dihydrocyclopentapyrazolyl and is optionally substituted with 1-3 substitutents indpendently selected from amino, Ci-6alkyl, or C3-6Cycloalkyl;
  • Ar 2 is imidazolyl, pyrazolyl, or pyridinyl, and is optionally substituted with 1-3 substitutents independently selected from Ci-6alkyl and halo substitutents;
  • Ar 3 is phenyl, pyridinyl, pyrazolyl, pyridazinyl, or pyrimidinyl, and is optionally substituted with 1-3 substituents independently selected from Ci-6alkyl, halo, carboxy, and cyano; and
  • Ar 4 is phenyl, benzofuropyrimidinyl, or pyridofuropyrimidinyl and is optionally substituted with 1-3 substituents independently selected from cyano, halo, Ci-6alkyl, and Ci-6alkyl-0-; and wherein each reference to "haloalkyl includes all halogenated isomers from monohalo to perhalo.
  • R 1 is hydrogen, halo, cyano, Ci-6alkyl, Ci-6haloalkyl, -Ci-6alkyl-OH, Ar 1 , -N(R 5 )(R 6 ), or (R 9 )(R 10 )NCi- 6 alkyl-; provided R 1 and R 4 are not both alkyl; and wherein R 5 , R 6 , R 9 , and R 10 are as defined above for the compounds of formula (IA).
  • R 1 is hydrogen or (R 9 )(R 10 )NCi-6alkyl-; provided R 1 and R 4 are not both alkyl; and wherein R 9 and R 10 are as defined above for the compounds of formula (IA).
  • R 2 is phenyl, pyrazinyl, pyridazinyl, pyridinyl, pyrimidinyl, quinolinyl, or isoquinolinyl, and is optionally substituted with 1-4 substituents indpendently selected from cyano, carbamoyl, carboxyl, halo, Ci-6alkyl, Ci-6haloalkyl, - N(Ci- 6 alkyl) 2 , Ci-ealkyl-O-, Ar 4 , (R 5 )(Ar 4 -Ci- 6 alkyl)N-, Ar 4 -0-Ci- 6 alkyl- , or (Ar 4 )(R 5 )N-Ci-6alkyl-; and wherein R 5 and A ⁇ are defined as above for the compounds of formula (IA).
  • R 2 is phenyl, pyrazinyl, pyridazinyl, pyridinyl, or pyrimidinyl, and is optionally substituted with 1-4 substituents indpendently selected from cyano, carbamoyl, carboxyl, halo, Ci-6alkyl, Ci-6haloalkyl, -N(Ci-6alkyl)2, Ci-ealkyl-O-, Ar 4 , (R 5 )(Ar 4 -Ci- 6 alkyl)N-, or
  • R 4 is hydrogen, cyano, halo, Ci-6haloalkyl, Ci-6alkyl, Ci-6alkyl-0-, Ci- 6alkenyl, hydroxy, or -Ci-6alkyl-OH; provided R 1 and R 4 are not both alkyl. More preferably, R 4 is Ci-6alkyl, cyano, halo, or Ci-6haloalkyl; provided R 1 and R 4 are not both alkyl.
  • a compound or pharmaceutically acceptable salt thereof selected from the group consisting of Examples 1-442 or pharmaceutically acceptable salts thereof.
  • the invention includes all pharmaceutically acceptable salt forms of the compounds.
  • Pharmaceutically acceptable salts are those in which the counter ions do not contribute significantly to the physiological activity or toxicity of the compounds and as such function as pharmacological equivalents. These salts can be made according to common organic techniques employing commercially available reagents.
  • Some anionic salt forms include acetate, acistrate, besylate, bromide, chloride, citrate, fumarate, glucouronate, hydrobromide, hydrochloride, hydroiodide, iodide, lactate, maleate, mesylate, nitrate, pamoate, phosphate, succinate, sulfate, tartrate, tosylate, and xinofoate.
  • Some cationic salt forms include ammonium, aluminum, benzathine, bismuth, calcium, choline, diethylamine, diethanolamine, lithium, magnesium, meglumine,
  • the invention includes all stereoisomeric forms of the compounds including enantiomers and diastereromers. Methods of making and separating stereoisomers are known in the art.
  • the invention includes all tautomeric forms of the compounds.
  • the invention includes atropisomers and rotational isomers.
  • the invention is intended to include all isotopes of atoms occurring in the present compounds.
  • Isotopes include those atoms having the same atomic number but different mass numbers.
  • isotopes of hydrogen include deuterium and tritium.
  • Isotopes of carbon include 13 C and 14 C.
  • Isotopically- labeled compounds of the invention can generally be prepared by conventional techniques known to those skilled in the art or by processes analogous to those described herein, using an appropriate isotopically-labeled reagent in place of the non-labeled reagent otherwise employed. Such compounds may have a variety of potential uses, for example as standards and reagents in determining biological activity. In the case of stable isotopes, such compounds may have the potential to favorably modify biological, pharmacological, or pharmacokinetic properties.
  • a method for treating or preventing an HIV infection in a patient having or at risk of having the infection comprising administering to the patient a therapeutically effective amount of a compound disclosed herein, or a pharmaceutically acceptable salt thereof, in combination with a therapeutically effective amount of one or more additional therapeutic agents.
  • a method for treating or preventing an HIV infection in a human having or at risk of having the infection comprising administering to the human a therapeutically effective amount of (2S)-2-(tert-butoxy)-2-[4'-(4,4- dimethylpiperidin- 1 -yl)-6 ' -methyl-5 -(2-methylpropoxy)-[2,3 ' -bipyridine] -5 ' -yl] acetic acid or a pharmaceutically acceptable salt thereof, in combination with a therapeutically effective amount of one or more additional therapeutic agents.
  • a method for treating or preventing an HIV infection in a human having or at risk of having the infection comprising administering to the human a therapeutically effective amount of (2S)-2-(tert-butoxy)-2-[5-butoxy-4'-(4,4- dimethylpiperidin-l-yl)-6'-methyl-[2,3'-bipyridine]-5'-yl]acetic acid or a
  • compositions comprising a compound disclosed herein, or a pharmaceutically acceptable salt thereof, in combination with one or more additional therapeutic agents, and a pharmaceutically acceptable carrier, diluent or excipient are provided.
  • compositions comprising a compound disclosed herein, or a pharmaceutically acceptable salt thereof, in combination with one or more additional therapeutic agents, and a pharmaceutically acceptable carrier, diluent or excipient are provided.
  • combination pharmaceutical agents comprising a compound disclosed herein, or a pharmaceutically acceptable salt thereof, in combination with one or more additional therapeutic agents are provided.
  • the additional therapeutic agent may be an anti-HIV agent.
  • the additional therapeutic agent is selected from the group consisting of HIV protease inhibitors, HIV non-nucleoside inhibitors of reverse transcriptase, HIV nucleoside inhibitors of reverse transcriptase, HIV nucleotide inhibitors of reverse transcriptase, HIV integrase inhibitors, HIV non-catalytic site (or allosteric) integrase inhibitors, entry inhibitors (e.g., CCR5 inhibitors, gp41 inhibitors (i.e., fusion inhibitors) and CD4 attachment inhibitors), CXCR4 inhibitors, gpl20 inhibitors, G6PD and NADH-oxidase inhibitors, compounds that target the HIV capsid ("capsid inhibitors"; e.g., capsid polymerization inhibitors or capsid disrupting compounds such as those disclosed in WO 2013/006738 (Gilead Sciences), US
  • the additional therapeutic agent is selected from one or more of:
  • HIV protease inhibitors selected from the group consisting of amprenavir, atazanavir, fosamprenavir, indinavir, lopinavir, ritonavir, nelfinavir, saquinavir, tipranavir, brecanavir, darunavir, TMC-126, TMC-114, mozenavir (DMP-450), JE-2147 (AG1776), L-756423, RO0334649, KNI-272, DPC-681, DPC-684, GW640385X, DG17, PPL-100, DG35, and AG 1859;
  • HIV non-nucleoside or non-nucleotide inhibitors of reverse transcriptase selected from the group consisting of capravirine, emivirine, delaviridine, efavirenz, nevirapine, (+) calanolide A, etravirine, GW5634, DPC-083, DPC-961, DPC-963, MIV-150, TMC- 120, rilpivirene, BILR 355 BS, VRX 840773, lersivirine (UK-453061), RDEA806, KM023 and MK-1439;
  • HIV nucleoside inhibitors of reverse transcriptase selected from the group consisting of zidovudine, emtricitabine, didanosine, stavudine, zalcitabine, lamivudine, abacavir, amdoxovir, elvucitabine, alovudine, MIV-210, .+-.-FTC, D-d4FC, emtricitabine, phosphazide, fozivudine tidoxil, apricitibine (AVX754), KP-1461, GS-9131 (Gilead Sciences) and fosalvudine tidoxil (formerly HDP 99.0003);
  • HIV nucleotide inhibitors of reverse transcriptase selected from the group consisting of tenofovir, tenofovir disoproxil fumarate, tenofovir alafenamide fumarate (Gilead Sciences), GS-7340 (Gilead Sciences), GS-9148 (Gilead Sciences), adefovir, adefovir dipivoxil, CMX-001 (Chimerix) or CMX-157 (Chimerix);
  • HIV integrase inhibitors selected from the group consisting of curcumin, derivatives of curcumin, chicoric acid, derivatives of chicoric acid, 3,5-dicaffeoylquinic acid, derivatives of 3,5-dicaffeoylquinic acid, aurintricarboxylic acid, derivatives of aurintricarboxylic acid, caffeic acid phenethyl ester, derivatives of caffeic acid phenethyl ester, tyrphostin, derivatives of tyrphostin, quercetin, derivatives of quercetin, S-1360, AR-177, L-870812, and L-870810, raltegravir, BMS-538158, GSK364735C, BMS- 707035, NMK-2048, BA 011, elvitegravir, dolutegravir and GSK-744;
  • NICKI allosteric, integrase inhibitors
  • NCINI allosteric, integrase inhibitors
  • BI-224436 CX0516, CX05045, CXI 4442
  • compounds disclosed in WO 2009/062285 Boehringer Ingelheim
  • WO 2010/130034 Boehringer Ingelheim
  • WO 2013/159064 Gilead Sciences
  • WO 2012/145728 Gilead Sciences
  • WO 2012/003497 Gilead Sciences
  • WO 2012/003498 WO 2012/003498
  • gp41 inhibitors selected from the group consisting of enfuvirtide, sifuvirtide, albuvirtide, FB006M, and TRI-1144;
  • CCR5 inhibitors selected from the group consisting of aplaviroc, vicriviroc, maraviroc, cenicriviroc, PRO-140, INCB 115050, PF-232798 (Pfizer), and CCR5 mAb004;
  • CD4 attachment inhibitors selected from the group consisting of ibalizumab (TMB- 355) and BMS-068 (BMS-663068);
  • pharmacokinetic enhancers selected from the group consisting of cobicistat and SPI- 452;
  • Combination "coadministration,” “concurrent” and similar terms referring to the administration of a compound of Formula I with at least one anti-HIV agent mean that the components are part of a combination antiretroviral therapy or highly active antiretroviral therapy ("HAART") as understood by practitioners in the field of AIDS and HIV infection.
  • HAART highly active antiretroviral therapy
  • “Therapeutically effective” means the amount of agent required to provide a benefit to a patient as understood by practitioners in the field of AIDS and HIV infection. In general, the goals of treatment are suppression of viral load, restoration and preservation of immunologic function, improved quality of life, and reduction of HIV-related morbidity and mortality.
  • Patient means a person infected with the HIV virus.
  • compositions which are normally formulated in dosage units and compositions providing from about 1 to 1000 milligram ("mg") of the active ingredient per dose are typical. Some examples of dosages are 1 mg, 10 mg, 100 mg, 250 mg, 500 mg, and 1000 mg. Generally, other antiretroviral agents will be present in a unit range similar to agents of that class used clinically. Typically, this is about 0.25-1000 mg/unit.
  • Liquid compositions are usually in dosage unit ranges.
  • the liquid composition will be in a unit dosage range of about 1-100 milligram per milliliter ("mg/mL").
  • Some examples of dosages are 1 mg/mL, 10 mg/mL, 25 mg/mL, 50 mg/mL, and 100 mg/mL.
  • other antiretroviral agents will be present in a unit range similar to agents of that class used clinically. Typically, this is about 1-100 mg/mL.
  • the invention encompasses all conventional modes of administration; oral and parenteral methods are preferred.
  • the dosing regimen will be similar to other antiretroviral agents used clinically.
  • the daily dose will be about 1-100 milligram per kilogram (“mg/kg”) body weight daily.
  • mg/kg milligram per kilogram
  • more compound is required orally and less parenterally.
  • the specific dosing regimen will be determined by a physician using sound medical judgment.
  • the compounds of this invention can be made by various methods known in the art including those of the following schemes and in the specific embodiments section.
  • the structure numbering and variable numbering shown in the synthetic schemes are distinct from, and should not be confused with, the structure or variable numbering in the claims or the rest of the specification.
  • the variables in the schemes are meant only to illustrate how to make some of the compounds of this invention.
  • the disclosure is not limited to the foregoing illustrative examples and the examples should be considered in all respects as illustrative and not restrictive, reference being made to the appended claims, rather than to the foregoing examples, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced.
  • Some compounds can be synthesized from an appropriately substituted heterocycle 1-1 according to Scheme I.
  • Compounds 1-1 and 1-6 are commercially available or synthesized by reactions well known in the art.
  • Treatment of compound 1-1 with bromine provided the dibromo intermediates 1-2 which was converted to the chloropyridine 1-3 by reacting with POC .
  • Intermediate 1-3 conveniently transformed to ketoester 1-5 using conditions well-known to those skilled in the art, including reacting I- 3 with Grignard reagent in the presence of catalytic copper(I) bromide dimethylsulfide complex followed by alkyl 2-chloro-2-oxoacetate.
  • Coupling of amines 1-5 with intermediate 1-6 in the presence of an organic base such as Hunig's base provided intermediate 1-7.
  • Intermediates 1-10 are conveniently transformed to intermediates II-2 using conditions well-known in the art, including but not limited to the Suzuki coupling between intermediates 1-10 and II-l. Cleavage of protecting group in II-2 provided phenol II-3. Alkylation of the phenol II-3 was achieved by using conditions well known to those skilled in the art, including but not limited to Mitshunobu reaction to provide the intermediate II-4. Hydrolysis of intermediate II-4 by using conditions well-known in the literature furnished carboxylic acid II-5.
  • some compounds of this invention can be synthesized according to Scheme III.
  • Pyridine III-l can be produced using methods similar to those described in the previous schemes.
  • This intermediate can be carried on to the final products by a variety of paths.
  • the C2 and C6 alkyl groups can be oxidized to furnish intermediates III-3 and/or III-4 which can be further transformed to final compounds III-9 or III- 10 by methods well known in the art.
  • some compounds of this invention can be synthesized according to Scheme IV.
  • Pyridine III-5 can be transformed to the final products by several paths.
  • the C6 hydroxymethyl is oxidized to furnish carboxylic acid IV-1 which upon heating in the presence of acid provided C6-desmethyl analog IV-2.
  • the "Pd” mediated coupling of boronate IV-2 with appropriate aryl halides or aryl triflate followed by hydrolysis furnished the target compounds.
  • the target compounds could be synthesized by coupling intermediate IV-2 with aryl halides under Negishi coupling conditions followed by ester hydrolysis.
  • HiO/acetonitrile with 0.1% TFA and mobile phase B A: 9: 1 acetonitrile/HiO with 0.1% TFA; or mobile phase A: water/MeOH (9: 1) with 20 mM NFUOAc and mobile phase B: 95:5 MeOH/HiO with 20 mM NH 4 OAc or mobile phase A: water/MeOH (9: 1) with 0.1% TFA and mobile phase B: 95:5 MeOH/HiO with 0.1% TFA or mobile Phase A: 5:95 acetonitrile: water with 10-mM ammonium acetate; Mobile Phase B: 95:5 acetonitrile: water with 10-mM ammonium acetate.
  • 1,4-Dioxane (3.7 ml) and water (0.7 ml) was added under N2 (g). The reaction was stirred at 80 °C. for 1 hr. The reaction was concentrated, adsorbed onto celite and was purified on silica gel (Biotage,
  • 3,5-Dibromo-4-chloro-2-methylpyridine To a solution of 3,5-dibromo-2- methylpyridin-4-ol (13.12 g, 49.2 mmol) in POCb (13.74 ml, 147 mmol) was added triethylamine (6.85 ml, 49.2 mmol) at 0 °C slowly over 80 min. After addition ice bath was removed, and the reaction was heated to 80 °C and stirred for 3h. The reaction mixture was then cooled to rt and slowly quenched by adding it to crushed ice. The resulting suspension was extracted with DCM (250ml).
  • reaction mixture was then transferred via cannula to another flask containing a solution of isopropyl 2- chloro-2-oxoacetate (4.97 g, 33.0 mmol) in THF(75 ml) at -60 °C and allowed to warm to -10 °C for 2.5 hr.
  • the reaction was then quenched with 10% solution of ammonium chloride and diethyl ether.
  • the organic layer was washed with brine, collected, dried (MgSCU), filtered and volatiles evaporated to give the crude material.
  • the flask was transfered to a - 15 to -12 °C cold bath (chiller/circulator). The yellow solution was stirred for 1 day at -15 to -12 °C. The reaction was quenched with 5 mL of 2M aq. sodium carbonate. The reaction was then diluted with 100 mL EtOAc and 100 mL 2M aq sodium carbonate and stirred vigorously for 2 hrs. The layers were separated and the organic layer collected and stirred vigorously for an additional 1 hr. The organic layer was washed with brine, dried over MgS04, filtered and evaporated to give the crude product.
  • the reaction was recooled to -78 °C and transferred to a solution of 3-bromo-2-chloro-4-fluoropyridine (13.55 g, 64.4 mmol) in THF (225 mL) at -78 °C over 10 min. After the additon was complete, the reaction was stirred at -78 °C for 50 min, then treated with a solution of iodine (18.8 g, 74.1 mmol) in THF (225 mL) at -50C. The reaction was packed in dry ice and allowed to stir while slowly warming to room temp over 18 h.
  • the reaction was cooled to -35 °C and treated (via cannulae) with a solution of 4,4-dimethylpiperidine (16 g, 141 mmol) in N,N-diisopropylethylamine (19.2 mL, 110 mmol), followed by acetonitrile (100 mL) and allowed to stir while slowly warming to room temp over 18 h.
  • the reaction was treated with diethanol amine (805 mg, 7.66 mmol), diluted with ethyl acetate (1100 mL), extracted with water (1 x 150 mL), dried over Na2S04 and concentrated.
  • the crude material was purified via silica gel chromatography (330g SiC column,
  • the flask was securely capped, removed from the bath and allowed to stir for 18 h while slowly warming to room temp.
  • the reaction was cooled to - 60 °C and quenched into an erlenmeyer flask containing a mixture of CH2CI2 (200 mL) and NaHCC (12.8 g, 152 mmol) dissolved in water (250 mL).
  • the reaction was further diluted with dichloromethane (300 mL), extracted with water (1 x 75 mL), brine (1 x 75 mL), dried over Na2S04 and concentrated.
  • the reaction was stirred at -21 °C (+/- 4 C) for 33 min, then recooled to -20 °C and treated with anhydrous DMF (1.00 mL, 12.91 mmol). The reaction was allowed to warm to -8 °C over 70 min, then recooled to -20 °C and quenched with aqueous saturated NH4CI. The crude reaction was diluted with ethyl acetate (150 mL), extracted with water (1 x 15 mL, brine (1 x 15 mL), dried over NaiSCU, and concentrated.
  • reaction solution was concentrated in vacuo and the resulting oil was purified via silica gel chromatography (40 g column, 5-40% EtOAc:Hex) to afford the product 2-chloro-5-(4- fluorophenethoxy)pyrazine (330 mg, 1.306 mmol, 68.2 % yield) as a white solid.
  • the material was further purfied via reverse phase C18 chromatography (55 g column, 20-100% CH3CN:Water with 0.1% TFA buffer). The desired fractions were isolated, diluted with sat. sodium bicarbonate solution (25 mL) and EtOAc. The organic layer was washed with brine, collected, dried over MgS04, and volatiles evaporated to afford the pure product 3- chloro-6-(4-fluorophenethoxy)pyridazine (450 mg, 1.781 mmol, 93 % yield) as a white solid.
  • 1,4-Dioxane (20 ml) and water (4.0 ml) was added under N2 (g). The reaction was stirred at 80 °C for 1 hr. The reaction was concentrated, adsorbed onto celite and was purified on silica gel (Biotage,
  • N-(4-Bromobenzyl)-N-methylbenzofuro[3,2-d]pyrimidin-4-amine 174 mg, 0.473 mmol
  • 4,4,4',4',5,5,5',5'-octame1hyl-2,2'-bi(l,3,2-dioxaborolane) 180 mg, 0.709 mmol
  • PdCkdppf 35 mg, 0.047 mmol
  • potassium acetate 139 mg, 1.42 mmol
  • N-(4-bromo- 2-fluorobenzyl)benzofuro[3,2-d]pyrimidin-4-amine (1 g, 2.69 mmol
  • PdC12(dppf)- CH2C12 adduct 0.219 g, 0.269 mmol
  • potassium acetate 0.791 g, 8.06 mmol
  • 4,4,4',4',5,5,5',5'-octamethyl-2,2'-bi(l,3,2-dioxaborolane) 1.023 g, 4.03 mmol.
  • the solids were suspended in dioxane (15 mL). Argon was bubbled through the mixture for 5 minutes while sonicating.
  • the reaction was flushed wll with argon, treated with [ ⁇ , ⁇ - bis(diphenylphosphino)ferrocene]dichloropalladium(II) (800 mg, 1.093 mmol), capped and heated at 100 °C oil bath for 18 h.
  • the crude reaction was diluted with ethyl acetate (450 mL), filtered through a pad of celite, extracted with water (1 x 150 mL), brine, dried over Na2S04 and concentrated.
  • the crude material was purified via silica gel chromatography (330g SiCh column, hexane:dichloromethane 100:0 -> 0: 100) to afford 2-(3-fluoro-4-(4-fluorophenethoxy)phenyl)-4,4,5,5-tetramethyl-l,3,2-dioxaborolane, 3.95 g (55%).
  • N-methyliminodiacetic acid 500 mg, 3.40 mmol
  • DMSO 2 mL
  • benzene 10 mL
  • the flask was fitted with a Dean-Stark trap pre-filled with benzene.
  • the Dean-Stark trap was fitted with an air- cooled reflux condensor.
  • the reaction flask was placed in a 125 °C oil bath with stirring. An active azeotrope was observed within 10 minutes. Heating and stirring was maintained for 30 min.
  • reaction mixture was cooled to r.t., then was transfered to a 125 mL separatory funnel and was diluted with water (50 mL). The mixture was extracted with EtOAc (2 x 50 mL). The combined organics were washed with brine (15 mL); dried over MgS04; filtered; then concentrated in vacuo. The resulting residue was dissolved in a min. of acetone, then was concentrated onto Celite in vacuo.
  • reaction time not optimized The reaction mixture was transferred to a 125 mL separatory funnel charged with aq HCl (1M, 20 mL). The mixture was extracted with Et20 (60 mL). The organic phase was washed with brine (20 mL), then dried over MgS04, then filtered, then concentrated in vacuo to afford (3-fluoro-4-(2-fluorophenethoxy)phenyl)boronic acid as an off-white solid (1.3463 g, 97%).
  • the flask was placed in a 80 °C oil bath with stirring for Id.
  • the reaction mixture was cooled to r.t., then was transferred to a 125 mL separatory funnel.
  • the mixture was diluted with aq. NaOH (1M, 25 mL), then was extracted with Et20 (50 mL).
  • the organic phase was washed with brine (25 mL), then dried over
  • the resulting powder was subjected to S1O2 purification (80g S1O2, hexanes:EtOAc 100:0- ⁇ 80:20) to afford a colorless oil that crystallized upon standing to afford 2-bromo-5-(4-fluorophenethoxy)pyridine (1.5337 g, 90 %) as a colorless, crystalline solid.
  • a distillation apparatus was assembled as follows: a 3-neck 250 mL flask equipped with a large stir bar was charged with methyliminodiacetic acid (6.06 g, 41.2 mmol) and DMSO (36.2 ml); the center neck was fitted with a pressure-equalizing addition funnel vented to positive N2 pressure; another neck was fitted with a rubber septum through which a thermocouple was inserted to monitor internal temperature; and the final neck was fitted with a short-path distillation apparatus collecting into a 250 mL r.b. flask and vented to a bubbler. The reaction solution containing the boronate was transfered to the addition funnel. The 3-neck flask was heated with an oil bath (160 °C).
  • the boronate solution was added dropwise at a rate necessary to maintain an internal temp of 115-120 °C. The addition took approximately 20 min.
  • the receiver flask containing the THF was exchanged for an empty 200 mL r.b. flask.
  • the bubbler line connected to the vacuum arm of the distillation apparatus was exchanged for a tube running vacuum.
  • the N2 source was closed.
  • the system was placed under vacuum, slowly ramping to 30 Torr upon which the DMSO distilled.
  • the distillation was maintained at 30 Torr until only trace DMSO remained.
  • the resulting residue, a solid, was dissolved in MeCN upon which only a white powder did not dissolve.
  • the mixture was concentrated onto Celite in vacuo.
  • triphenylphosphine (1.82 g, 6.94 mmol) and THF (30 ml).
  • diethyl (E)-diazene-l,2-dicarboxylate (1.09 ml, 6.94 mmol) dropwise.
  • the solution was stirred at r.t. for 2 hrs.
  • the reaction solution was concentrated in vacuo and the resulting oil was diluted with a min of acetone, then concentrated onto Celite in vacuo.
  • the material was diluted with hexane:Et20 (1 : 1, 850 mL). A precipitate was immediately formed. The mixture was stirred for 5 minutes, then the liquid was decanted and reserved. The solids were treated with Et20 (200 mL), and the mixture was stirred for 5 minutes. The solution was diluted with hexanes (200 mL), and the mixture was then stirred for 5 minutes. The mixture and the reserved solution were combined and filtered through a fine-fritted vacuum funnel. The filtrate was concentrated in vacuo. The resulting residue was diluted with a small amount of acetone and then concentrated onto Celite in vacuo.
  • the cold bath was removed and the solution was allowed to slowly warm to r.t. with stirring. After 2 h the solution was transferred to a pressure-equalizing addition funnel.
  • the addition funnel was fitted onto the center neck of a 3 -neck 250 mL flask equipped with a large stir bar was charged with N-methyliminodiacetic acid (24.35 g, 165 mmol) and DMSO (150 ml).
  • a side neck was fitted with a thermocouple.
  • the other side neck was fitted with a water-cooled short-path distillation apparatus collecting into a 250 mL round bottom flask and vented to a bubbler.
  • the addition funnel was capped with a gas adapter connected to a low-volume stream of N2 gas.
  • the 3 -neck flask was heated with an oil bath (150 °C).
  • the boronate solution was added dropwise at a rate necessary to maintain an internal temp of 115-120 °C.
  • the blue boronate solution immediately becomes a red/amber color upon contacting the DMSO solution.
  • the reaction mixture is a deep amber solution.
  • the receiver flask containing THF was exchanged for an empty 200 mL round bottom flask.
  • the bubbler line connected to the vacuum arm of the distillation apparatus was exchanged for a controlled vacuum source.
  • the N2 source feeding into the addition funnel was closed.
  • the system was placed under vacuum, slowly ramping to 30 Torr.
  • the receiver flask was emptied, then the vacuum was slowly ramped to 2 Torr.
  • the bath temperature was set to 125 °C and the pressure was maintained at 2 Torr.
  • the flask was opened to ambient atmosphere.
  • MeCN 100 mL
  • Heating was maintained until the solvent had reached reflux, then heating was stopped.
  • Celite To the hot mixture was added Celite.
  • the mixture was concentrated in vacuo to afford a clumpy solid which was subjected to S1O2 chromatography (EtOAc:MeCN 100:0 0: 100) to afford the desired product as a colorless solid.
  • This material was dissolved/suspended in MeCN (100 mL), then was diluted with Et20 (400 mL). The crystalline solid was collected via vacuum filtration.
  • the reaction was heated at 80 °C for 2 h.
  • the reaction was cooled to RT and diluted with water and extracted with EtOAc.
  • the organic layer was washed with brine, collected, dried over MgS04, filtered and volatiles evaporated to afford the crude product.
  • the crude product was purified on silica gel (40 g column, 5-50%
  • the flask was sealed with a rubber septum, then was placed under N2 atm (vac/fill x 3). To the flask was added degassed (N2 bubbling for 5 min) dioxane (1 mL) + water (0.4 mL). The test tube was placed in a 60 °C heating block with stirring. The reaction was stirred for 3 hours at this temperature. The reaction was then cooled to RT and then diluted with water and EtOAc. The organic layer was washed with brine, collected, dried over MgS04, filtered and volatiles evaporated to afford the crude material.
  • the product was prepared according to procedure for the preparation of isopropyl (S)-2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-l-yl)-5-(5-(4- fluorophenethoxy)pyrimidin-2-yl)-2-methylpyridin-3-yl)acetate by using (S)-(5-(l-(tert- butoxy)-2-isopropoxy-2-oxoethyl)-4-(4,4-dimethylpiperidin-l-yl)-6-methylpyridin-3- yl)boronic acid (113 mg, 0.269 mmol) and SPhos-Pd-G3 (10.47 mg, 0.013 mmol) was added tribasic potassium phosphate (514 mg, 2.419 mmol) and 3-chloro-6- methoxypyridazine (0.269 mmol) to afford the product (S)-isopropyl 2-(tert-butoxy)-2-(4
  • test tube was placed in a 60 °C heating block with for 18h.
  • the reaction mixture was cooled to r.t., then was diluted with brine (2 mL) and Et20 (5 mL).
  • the isolated organic phase was dried over MgS04, then filtered, then concentrated in vacuo.
  • the resulting residue was dissolved in a min. of acetone and then was concentrated onto Celite in vacuo.
  • the product was prepared according to procedure for the preparation of isopropyl (S)-2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-l-yl)-5-(5-(4- fluorophenethoxy)pyrimidin-2-yl)-2-methylpyridin-3-yl)acetate by using (S)-(5-(l-(tert- butoxy)-2-isopropoxy-2-oxoethyl)-4-(4,4-dimethylpiperidin-l-yl)-6-methylpyridin-3- yl)boronic acid (113 mg, 0.269 mmol) and SPhos-Pd-G3 (10.47 mg, 0.013 mmol) was added tribasic potassium phosphate (514 mg, 2.419 mmol) and 3-chloro-6- methoxypyridazine (0.269 mmol) to afford the product (S)-isopropyl 2-(tert-butoxy)-2-(4
  • the product was prepared according to procedure for the preparation of isopropyl (S)-2-(tert-butoxy)-2-(4-(4,4-dimethylpiperidin-l-yl)-5-(5-(4- fluorophenethoxy)pyrimidin-2-yl)-2-methylpyridin-3-yl)acetate by using (S)-(5-(l-(tert- butoxy)-2-isopropoxy-2-oxoethyl)-4-(4,4-dimethylpiperidin-l-yl)-6-methylpyridin-3- yl)boronic acid (113 mg, 0.269 mmol) and SPhos-Pd-G3 (10.47 mg, 0.013 mmol) was added tribasic potassium phosphate (514 mg, 2.419 mmol) and 3-chloro-6-(4- fluorophenethoxy)pyridazine (0.269 mmol) to afford the product (S)-isopropyl 2-(tert
  • test tube was sealed with a rubber septum and then placed under nitrogen atmosphere.
  • the test tube was placed in a 60 °C heating block with stirring for 18 h.
  • the reaction mixture was transfered to 125 mL separatory funnel and was diluted with Et20 (25 mL).
  • the mixture was washed with water (25 mL), then dried over MgSCU; filtered; then concentrated in vacuo.
  • the resulting residue was dissolved in a minimum of acetone, then was concentrated onto Celite in vacuo.
  • the test tube was sealed with a rubber septum and then placed under N2 atm.
  • the test tube was placed in a 60 °C heating block with stirring for 18h.
  • the reaction mixture was transfered to 125 mL separatory funnel and was diluted with Et20 (25 mL).
  • the mixture was washed with water (25 mL), then dried over MgSCU; filtered; then concentrated in vacuo.
  • the resulting residue was dissolved in a min. of acetone, then was concentrated onto Celite in vacuo.
  • the resulting powder was subjected to S1O2 purification (24g S1O2 column,
  • the test tube was sealed with a rubber septum and then placed under N2 atm.To the flask was added a degassed (N2 sparging for 5 min.) solution of dioxane (1.5 mL) and water (0.5 mL). The test tube was placed in a 60 °C heating block with stirring for 18h. The reaction mixture was transfered to 125 mL separatory funnel and was diluted with Et20 (25 mL). The mixture was washed with water (25 mL), then dried over MgSCU; filtered; then concentrated in vacuo. The resulting residue was dissolved in a min. of acetone, then was concentrated onto Celite in vacuo. The resulting powder was subjected to S1O2 purification (24g S1O2 column,
  • the solution was stirred at r.t. for 18h.
  • the reaction solution was concentrated in vacuo and the resulting residue was dissolved in EtOAc (25 mL), then transfered to a 125 mL separatory funnel.
  • the solution was washed with aq. NaOH (1M, 25 mL), then brine (15 mL).
  • the organic phase was dried over MgS04, filtered and concentrated in vacuo.
  • the resulting residue was dissolved in a min. of acetone, then was concentrated onto Celite in vacuo.
  • the reaction mixture was transferred to a 125 mL separatory funnel and was diluted with Et20 (25 mL). The solution was washed with aq. NaOH (1M, 15 mL). The aq. phase was extracted with Et20 (25 mL). The combined organics were washed with brine (15 mL), then dried over MgS04, then filtered, then concentrated in vacuo. The resulting residue was dissolved in a min. of acetone, the was concentrated onto Celite in vacuo.
  • reaction was flushed with argon, treated with 0.5 M potassium phosphate tribasic (3 mL, 1.500 mmol), followed 2 nd generation X-phos precatalyst (30 mg, 0.038 mmol), capped and stirred at room temp for 18 h.
  • the reaction was flushed with argon, treated with 0.5 M potassium phosphate tribasic (2.60 mL, 1.300 mmol), followed by 2 nd generation X-phos precatalyst (32 mg, 0.041 mmol), capped and stirred at room temp for 18 h.
  • the crude material was dissolved in EtOAc (200 mL), extracted with water (1 x 6 mL), brine (1 x 10 mL), dried over Na2S04, and concentrated.
  • the crude material was purified via silica gel
  • reaction was flushed with argon, treated with 0.5 M potassium phosphate tribasic (500 ⁇ , 0.250 mmol) followed by 2 nd generation X-phos precatalyst (6.6 mg, 8.39 ⁇ ) and stirred at room temp for 18 h.
  • the reaction was diluted with ethyl acetate (75 mL), extracted with water (1 x 5 mL), brine (1 x 5 mL), dried over Na2S04, and concentrated.
  • the reaction was flushed with argon, treated with 0.5 M potassium phosphate tribasic (1.6 mL, 0.800 mmol), followed by 2 nd generation X-phos precatalyst (13.6 mg, 0.017 mmol), capped and stirred at room temp for 18 h.
  • the crude reaction was dissolved in EtOAc (110 mL), extracted with water (1 x 5 mL), brine (1 x 5 mL), dried over Na2S04 and concentrated.
  • reaction was flushed with argon, treated with 0.5 M potassium phosphate tribasic (1.65 mL, 0.825 mmol), followed by 2 nd generation X-phos precatalyst (15 mg, 0.019 mmol), capped and stirred at room temp for 18 h.
  • reaction was flushed with argon, treated with 0.5 M potassium phosphate tribasic (1.70 mL, 0.850 mmol), followed by 2 nd generation X- phos precatalyst (9.7 mg, 0.012 mmol), capped and stirred at room temp for 18 h.
  • reaction was flushed with argon, treated with 0.5 M potassium phosphate tribasic (1.80 mL, 0.900 mmol), followed by 2 nd generation X-phos precatalyst ( 18 mg, 0.023 mmol), capped and stirred at room temp for 48h.
  • the reaction was flushed with argon, treated with [ ⁇ , ⁇ - bis(diphenylphosphino)ferrocene]dichloropalladium(II) (13 mg, 0.018 mmol), capped and heated in a microwave reactor at 145 C for 19h.
  • the reaction was diluted with ethyl acetate (100 mL), extracted with water (3 x 15 mL), brine (1 x 50 mL), dried over Na2S04 and concentrated.
  • the reaction was stirred at 0 °C for 2 min, then the bath was removed and the reaction was allowed to slowly warm to room temp over 10 min.
  • the reaction was recooled to 0 °C and treated with additional methylmagnesium chloride, 3.0 M in THF (25 ⁇ , 0.075 mmol). The cooling bath was removed and the reaction was allowed to warm to room temp over 15 min.
  • the flask was sealed with a rubber septum, then placed under N2 atm. To the flask was added a degassed (N2 sparging for 5 min) solution of diethanolamine (0.721 g, 6.86 mmol) in DMF (60 mL). The flask was placed in a 100 °C oil bath with stirring for 18 h. The reaction mixture was transfered to a 1L separatory funnel. The mixture was diluted with waterbrine and extracted with EtOAc. However, an emulsion made this process extremely problematic. The volumes of each solvent were increased incrementally to finally achieve water (175 mL) : brine (175 mL) : EtOAc (250 mL). However, the emulsion persisted.
  • the entire mixture was filtered through Celite.
  • the filtrate was transfered back to the separatory funnel and the mixture was shaken, upon which the emulsion re-formed and persisted.
  • the mixture was filtered through Celite and the mixture was immediately partitioned in the separatory funnel without further mixing.
  • the aq. phase was mixed with EtOAc (250 mL).
  • the emulsion was filtered through the same Celite pad as before, and the mixture was partitioned in the separatory funnel without further mixing.
  • the combined organics were washed with waterbrine (175 mL: 175 mL) (no problematic emulsion), then brine (150 mL) (no problematic emulsion).
  • triphenylphosphine (2.192 g, 8.36 mmol) and THF (25 mL).
  • DIAD 1.625 mL, 8.36 mmol
  • the solution warmed to a mild reflux, then cooled within 5 minutes.
  • LCMS analysis at t 18h found a major peak corresponding to the desired product.
  • the reaction solution blue color
  • the reaction was cooled to RT and diluted with EtOAc and water. The organic layer was washed with brine, collected, dried over MgS04, filtered and the volatiles evaporated to afford the crude product.
  • the crude product was purified via silica gel (24 g column, 20-100%
  • reaction solution was concentrated in vacuo and the resulting oil was diluted with a min of acetone, then concentrated onto Celite in vacuo.
  • the resulting residue was subjected to silica gel chromatography(40 g column, 5-40% EtOAc:Hex) to afford the product 6- chloro-3-(4-fluorophenethoxy)-2-methoxypyridine (378 mg, 1.342 mmol, 86 % yield) as a white solid.
  • reaction solution was concentrated in vacuo and the resulting oil was diluted with a min of acetone, then concentrated onto Celite in vacuo.
  • the resulting powder was subjected to silica gel chromatography (40 g column, 5-40% EtOAc:Hex) to afford the product 6- chloro-3-(4-fluorophenethoxy)-4-methylpyridazine (429 mg, 1.609 mmol, 93 % yield) as a white solid.
  • the flask was placed in a 100 °C oil bath with stirring for 18 hrs.
  • the reaction mixture was transfered to a 125 mL separately funnel and was diluted with waterbrine (1 : 1, 50 mL).
  • the mixture was extracted with EtOAc (3 x 50 mL).
  • the combined organics were washed with water :brine (1 : 1, 50 mL), then brine (50 mL).
  • the organics were dried over MgSCU; filtered; then concentrated in vacuo to afford an amber oil. This material was dissolved in a min of acetone, then was concentrated onto Celite in vacuo.
  • the resulting powder was subjected to S1O2 purification (24 g column, 5-100%

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Abstract

L'invention concerne des composés de formule I, y compris des sels pharmaceutiquement acceptables, des compositions pharmaceutiques comprenant ces composés, des procédés de fabrication de ces composés et leur utilisation dans l'inhibition de l'intégrase du VIH et le traitement des personnes infectées par le VIH ou le SIDA. (I)
PCT/IB2018/050021 2017-01-03 2018-01-02 Dérivés d'acide pyridin-3-yle acétique utilisés en tant qu'inhibiteurs de la réplication du virus de l'immunodéficience humaine WO2018127800A1 (fr)

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EP18700949.3A EP3565809A1 (fr) 2017-01-03 2018-01-02 Dérivés d'acide pyridin-3-yle acétique utilisés en tant qu'inhibiteurs de la réplication du virus de l'immunodéficience humaine

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Cited By (3)

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WO2020003093A1 (fr) * 2018-06-25 2020-01-02 VIIV Healthcare UK (No.5) Limited Dérivés d'acide pyridin-3-yl-acétique en tant qu'inhibiteurs de la réplication du virus de l'immunodéficience humaine
WO2019244066A3 (fr) * 2018-06-19 2020-03-05 VIIV Healthcare UK (No.5) Limited Dérivés d'acide pyridin-3-yl-acétique en tant qu'inhibiteurs de la réplication du virus de l'immunodéficience humaine
US10800772B2 (en) 2016-09-28 2020-10-13 Gilead Sciences, Inc. Therapeutic compounds

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